c66. WTEC III TRANSMISSION PUSHBUTTON SHIFT SELECTOR (TPSS) DISPLAYS MAIN CODE
42, 44, 45, 46, AND/OR 69 SUB CODE 21 (PRIOR TO SERIAL NUMBER 6510032369
WITH TRANSMISSION ADAPTER CABLE ASSEMBLY) (CONT)
TM 9-2320-366-34-1
2-806 Change 1
KNOWN INFO
TEST OPTIONS
REASON FOR QUESTION
7.
POSSIBLE PROBLEMS
Resistance Test or
STE/ICE-R Test #91
Faulty F solenoid.
Faulty WTEC III transmission
ECU.
Circuit breaker OK.
Batteries OK.
WTEC III cab transmission
harness OK.
Transmission external wiring
harness OK.
Transmission adapter cable
assembly OK.
Transmission internal wiring
harness OK.
Is 2.5-5.0 ohms resistance
present from F solenoid
pin A to pin B?
If 2.5-5.0 ohms resistance is
not present, F solenoid is
faulty. If 2.5-5.0 ohms
resistance is present, WTEC III
transmission ECU is faulty.
NO
Replace F solenoid
(para 7-8).
YES
Replace WTEC III transmission
ECU (TM 9-2320-366-20-4).
